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Cod sursa(job #165909)
#include <stdio.h>
#include <stdlib.h>
#define N 444111
int sum,n,max,sb,lb,s,e,l;
int v[N];
void dublam()
{
for(int i=1;i<=n;++i)
v[i+n]=v[i];
}
void scan()
{
freopen("buline.in", "r",stdin);
freopen("buline.out", "w",stdout);
scanf("%d", &n);
int semn;
for(int i=1;i<=n;++i)
{
scanf("%d%d", &v[i],&semn);
if(!semn)
v[i]=-v[i];
}
}
void solve()
{
dublam();
sum=0; s=1;
for(int i=1;i<n*2;++i)
{
sum+=v[i];
if(sum>max)
{
max=sum;
sb=s;
lb=i-s+1;
if(lb==n){
printf("%d %d %d\n",max,sb,lb);
exit(0);
}
}
if(sum<0){
sum=0;
s=i+1;
}
/*
e=i;
if(sum<0)
{
sum=0;
s=i;
if(s>n)
s=1;
}
sum+=v[i].a*v[i].b;
l=e-s+1;
if(l>n)
{
sum-=v[s]; ++s;}
if(sum>max)
{
max=sum;
sb=s;
lb=l;
}
*/
}
printf("%d %d %d\n",max,sb,lb);
}
int main()
{
scan();
solve();
return 0;
}